[Newt helps himself to the nearest chair, though he's still eyeing the gun. It'd be kind of funny if Ray just shot him now, though, he has to admit.]

I killed Hector because he was Ruin's other follower. I killed Ruin because I didn't want her causing me trouble after I defected, since there was no way she was ever going to win this. I chose wrong at the start of the game.

[He shrugs. It's matter-of-fact, but he's lost the arrogance he had in those last moments of the trial.]

As for Ai... Well, someone asked me to. That's not my secret to tell, but whether you'll believe me or not, I didn't want to kill her. There's more to it all, of course, but those are the cliffnotes.